github.com连接超时

 

1.错误信息

之前github都能用,但是今天git clone的时候居然连不上了,报错信息如下:

$ git clone git@github.com:hanchao5272/myreflect.git
Cloning into 'myreflect'...
ssh_dispatch_run_fatal: Connection to 13.250.177.223 port 22: Software caused connection abort
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

2.错误分析

于是怀疑是连接不到github.com了,首先在cmd窗口中,尝试ping一下百度

C:Usershanchao>ping www.baidu.com

正在 Ping www.a.shifen.com [61.135.169.121] 具有 32 字节的数据:
来自 61.135.169.121 的回复: 字节=32 时间=24ms TTL=57
来自 61.135.169.121 的回复: 字节=32 时间=45ms TTL=57
来自 61.135.169.121 的回复: 字节=32 时间=26ms TTL=57
来自 61.135.169.121 的回复: 字节=32 时间=22ms TTL=57

61.135.169.121 的 Ping 统计信息:
    数据包: 已发送 = 4,已接收 = 4,丢失 = 0 (0% 丢失),
往返行程的估计时间(以毫秒为单位):
    最短 = 22ms,最长 = 45ms,平均 = 29ms

说明网络连接正常。


然后再ping一下github.com

C:Usershanchao>ping github.com

正在 Ping github.com [13.229.188.59] 具有 32 字节的数据:
请求超时。
请求超时。
请求超时。
请求超时。

13.229.188.59 的 Ping 统计信息:
    数据包: 已发送 = 4,已接收 = 0,丢失 = 4 (100% 丢失),

确实ping不通。

因此怀疑是:本地DNS无法解析导致的。

3.错误解决

打开C:WindowsSystem32driversetchosts,内容如下:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#   127.0.0.1       localhost
#   ::1             localhost
0.0.0.0 account.jetbrains.com

发现:确实没有github.com的解析 
在文件末尾添加如下内容,并保存:

192.30.255.112  github.com git 
185.31.16.184 github.global.ssl.fastly.net  

重启cmd窗口,继续ping一下github.com

正在 Ping github.com [192.30.255.112] 具有 32 字节的数据:
来自 192.30.255.112 的回复: 字节=32 时间=311ms TTL=48
来自 192.30.255.112 的回复: 字节=32 时间=365ms TTL=48
来自 192.30.255.112 的回复: 字节=32 时间=376ms TTL=48
来自 192.30.255.112 的回复: 字节=32 时间=353ms TTL=48

192.30.255.112 的 Ping 统计信息:
    数据包: 已发送 = 4,已接收 = 4,丢失 = 0 (0% 丢失),
往返行程的估计时间(以毫秒为单位):
    最短 = 311ms,最长 = 376ms,平均 = 351ms
  • 说明,本机已经能够正常解析github.com这个域名了。至此,问题解决
原文地址:https://www.cnblogs.com/shoshana-kong/p/11003383.html